The attorney general has protected his boss, and impeachment looks futile. But the Democrats still have a duty to act

Those who had long hoped that Robert Mueller – the mostly silent sheriff riding into town to ensure good triumphed over evil – would be the saviour to deliver America and the world from Donald Trump are naturally disappointed. Mueller’s report, released yesterday , did not quite deliver the smoking gun Trump’s enemies had dreamed of. Instead, it handed the American public and their elected representatives a fully loaded revolver, with a note attached: “Now it’s up to you”.